The diagram below shows how one type of coal is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The process shown in the diagram displays the production stages of

electricity

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from coal.

Overall

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, the production of

electricity

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is an eight-stage, man-made and linear process that begins with extracting coal as a raw material and ends with using it as a

gas

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for

electricity

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usage by different places. First of all, the coal is extracted from a mine as big pieces and it is crushed into small pieces using a crusher machine.

Then

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, the crushed coal is carried by a truck to the gasifier where it is heated by temperature and turned to

gas

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before it is being cooled down in a cooling place where the waste heat operated in cooling machines. After that , the cool

gas

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was cleaned in a cleaning place and transferred to a

gas

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power plant where the

gas

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went through another heat waste procedure.

Finally

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, the

gas

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produces

electricity

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that can be used by people in houses or by big factories